Slender liane up to ± 3 m. tall, climbing over shrubs or forming tangled masses; branches and branchlets very slender, ± pubescent. Lvs at wide angle, on petioles 2-(5) mm. Lamina linear, entire, abruptly acute or apiculate, gradually narrowed to base; (3)-5-10 cm. × 1-2 mm. Infl. of few-fld axillary cymes up to 10 cm. long, us. shorter, on filiform pubescent peduncles up to 25 mm. long; occ. fls solitary; bracts linear. Fls 4-6 mm. long, on pubescent pedicles 5-10 mm. long. Calyx pubescent, lobes narrow-triangular to narrow-oblong. Corolla campanulate, up to 6 mm. long, yellow; lobes oblong, revolute. Anthers wholly exserted or mainly so, long-sagittate. Follicles up to c.15 cm. × 3 mm.